The reason I am asking is I am trying to track down a battery drain issue. The only thing I think can be causing it is the fact that I have my phone set to check 4 different email accounts every 5 mins.
I have a 3000mAh battery and I am able to kill it in 8hrs. I seem to remember someone talking about an app that could tell what apps or services were causing the most battery drain?
I am thinking about doing a test where I turn off automatic email checking and seeing if the battery lasts any longer. I use the phone for business as well as private use so I need to keep track of things when someone needs to get a hold of me. So I use email a great deal.
Ya.. that seems pretty fast.
I would also recommend checking the radio version that you have. Some people say that some radio versions kill the battery faster than others.
Check that out.
I have push mail set for one account (MS DirectPush with an Exchange server) with a 4/5 minute update interval, and I get acceptable battery life... It's not fantastic, but what do you expect for a PDA smartphone As soon as I fire up pRSSreader to check four RSS feeds (even if I set the interval to 3 hours!) my battery life REALLY suffers, and I'm in a 3G area - close to a mast, stationery - all day every day. The Palringo client REALLY kills the battery, we're talking about 3/4 hours to get to 10%.
SPB GPRS Monitor is useful for seeing if there's any data throughput going on, and the BatteryStatus Today plugin is also useful for seeing current battery drain in either mW or mA, so you can kinda figure out what's going on with your phone at the time (that and acbTaskManager to see if there's any processes maxing the device's CPU out, which has caused me battery drain in the past). I've got a HERM with v1.05.05.00 radio, for the record.
I've been having the same issue with my Vario II...
The battery life was relatively good when I didn't have my web'n'walk connection enabled. But now I have DirectPush enabled to check emails on an Exchange server set for 'as items arrive' aswell as another three POP email accounts.
The GPRS is almost always on and on full charge will only last me about 8-9 hours from 100% charge. If I'm out for a continous stretch for more than that time- I'm in trouble (as I was yesterday!)
I'm guessing this is normal behaviour then? Not too good if it is (!)
Well I went from 4 accounts every 5min down to 1 account every 5min and my battery life doubled. So yep constant email checking does kill the battery. Oh well, I have my important account set to check every 5min (may change it to 20mins) and my other accounts set to once a day, which I usually just check manually when I have a few min.
There seems to be many other threads on this issue and some say, even with multiple accounts setup, battery life is in the region of 20hrs. Changing to a different [radio] ROM seems like one of the solutions.
Sorry guys...I know I'm kinda late joining this discussion, but I thought I'd put in my two cents...
Checking your EMail in the fashion you described in your first post definitely drains your battery. I was in the same situation you're in: about 4 different accounts, set to update around 30 minutes or so...my phone was beeping "low battery" before the afternoon was over (and that was after being charged the previous night!)
Not only that, but I'm convinced that the "always-on" state that the radio was in from all that EMail-checking is what caused the radio to "burn out." I had to get a new 8525 after that happened.
Good luck with your situation. I'm looking for a solution myself.
I am using the CDMA hero, but this should apply to anyone with a Hero (although our GSM friends have probably figured this out long ago.) Feel free to move my post if you like.
So I too was experiencing extreme battery draw down. I considered the SMS issue with perpetual awake times but after isolating the issue, I was still hitting 30% after after 12 hours with only moderate use. I found that unacceptable considering my Treo has been in standby for 2 weeks now and the battery has not budged. Solution? Turn of Google background services.
I know it hurts to have to manually refresh email, contacts, and calendar, but the return is almost zero battery drain (unless you are actively playing with the phone.) I know this is an obvious fix and I read it elsewhere online when I first got the phone. However, I am addicted to Gmail so I was really hesitant to turn it off. The background services option seems to keep a constant data connection when I really just want it to check my email every 15 minutes or so and update my calendar and contacts once a day. Has anyone found a way to limit the update frequency without the HTC widget. (I prefer the stock Android Gmail client.)
I do not know about the frequency of Gmail syncing,
but the main battery saving trick for me
is to turn the mobile data connection completelly off
when i know i will not (or want not) to be online
for a longer period of time (e.g. in the night, longer car drives, etc)
i am using the build-in htc widget for this
Thanks. That is a pretty good solution. Still wish I could curtail the sync frequency though......
So we need to re-enable it when we want to visit the Market, right? Annoying but if it improves battery life, then not a big deal.
When I have Windows Live Push ("as items arrive," "always") enabled on my HD2 my battery life tanks. In about 8 hours it drops 20% or more while in standby without doing anything else. That's about 40 hours of standby battery life.
When I have it set to manual my battery drops 2% in 8 hours. That's around 400 hours of standby battery, which makes a lot more sense.
Is this normal? Does anyone else experience this using this feature? I am seriously curious as to why MS Live push e-mail keeps up an ACTIVE data connection that is not defeatable, and why it insists on wrecking battery life. If this is a consistent phenomenon, then push e-mail in this way is absolutely useless.
I have seen people with MS Exchange-based push (not Live) email get fine battery life, so this bothers me.
friend'scatdied said:
When I have Windows Live Push ("as items arrive," "always") enabled on my HD2 my battery life tanks. In about 8 hours it drops 20% or more while in standby without doing anything else. That's about 40 hours of standby battery life.
When I have it set to manual my battery drops 2% in 8 hours. That's around 400 hours of standby battery, which makes a lot more sense.
Is this normal? Does anyone else experience this using this feature? I am seriously curious as to why MS Live push e-mail keeps up an ACTIVE data connection that is not defeatable, and why it insists on wrecking battery life. If this is a consistent phenomenon, then push e-mail in this way is absolutely useless.
Click to expand...
Click to collapse
It's perfectly normal mate. For push to work your phone needs to keep an open connection to the live server, which means some kind of heartbeat or keepalive message being sent every now and then (anywhere between every 30 seconds to every 10 minutes - it varies from software to software). This is therefore constantly using your battery. I was amazed at how much my battery life increased by changing the live synch settings from "as items arrive" to "every 15 minutes".
Look at turning down how regularly you update things like the weather and facebook too, and you'll see just how good the battery life on this thing really is!
johncmolyneux said:
It's perfectly normal mate. For push to work your phone needs to keep an open connection to the live server, which means some kind of heartbeat or keepalive message being sent every now and then (anywhere between every 30 seconds to every 10 minutes - it varies from software to software). This is therefore constantly using your battery. I was amazed at how much my battery life increased by changing the live synch settings from "as items arrive" to "every 15 minutes".
Look at turning down how regularly you update things like the weather and facebook too, and you'll see just how good the battery life on this thing really is!
Click to expand...
Click to collapse
I know, but one of the reasons I got my HD2 was because I'm a MSN junkie. I have read that people have got "2 days" battery life with MS Exchange push and that makes me feel kind of bothered. My Motorola Milestone with Gmail push didn't see anywhere near this kind of battery drain.
johncmolyneux said:
It's perfectly normal mate. For push to work your phone needs to keep an open connection to the live server, which means some kind of heartbeat or keepalive message being sent every now and then (anywhere between every 30 seconds to every 10 minutes - it varies from software to software). This is therefore constantly using your battery. I was amazed at how much my battery life increased by changing the live synch settings from "as items arrive" to "every 15 minutes".
Look at turning down how regularly you update things like the weather and facebook too, and you'll see just how good the battery life on this thing really is!
Click to expand...
Click to collapse
i have MS Exchange push e-mail using 3G/HSDPA and I have experienced extra battery life when compared to POP3 email synchronization !
It seems to me that push e-mail is more energy efficient.
Last night @ 23h00: 100% battery. This morning 9h30: 95% battery...
Well my phone went from 1 day of average use to 2-3 days of average use, just by turning off push email, so we're getting different results from the same thing.
So, I understand that the Gmail app uses Push technology for receiving emails. How is this on battery life? Would I get better battery life if I disabled auto sync with gmail, and used set up the email application to check for mail every 30 minutes?
Or maybe do something with juice defender so that it turns on sync every half hour for a while, then turns it back off?
I'm trying to cut down on as much unnecessary Syncing as possible. I honesty don't need to get an email the very second it arrives... I'm only a college student
Sent from my HTC Evo 4G
Push notifications don't use enough data/battery for you to notice vs your scheme of toggling data on/off. What you will prevent is other data use such as the phone sending back location data, market checking for updates, other apps the pull data automatically like weather or news.
I have found the solution for MY large battery drain:
The problem has been, that my phone used 5% of battery per hour when it’s merely lying around. The battery graph was a straight, quickly decreasing line. So the culprit was not something that happend from time to time but always.
One very disturbing thing: The indicators below the battery graph shows when phone, Wifi and the screen were on. In additions it shows when the phone has been awake.
Even if the screen was off and I did not touch the phone, the „Awake“ indicator constantly showed every minute for a very short time. So the phone never went to sleep, it woke up constantly all the time. Sorry, unfortunately I don’t have a screen capture for this.
Deactivating automatic updates for applications and setting the Emails to sync never didn’t help. I even erased all the Samsung crapware from the system folder, but to no use. The battery died after one day of not doing anything with the phone.
Then I deactivated syncing of the contacts and the calendar for my WindowsLive-Exchange account and the battery drain stopped. I now have less than 1% per hour (see screenshot) when the phone is simply lying around.
So, for me the culprit is the syncing for contacts and calender via Exchange. Unfortunately there is no option to set the sync interval for these.
- Anyone can reproduce this issue?
- Is this just a problem with WindowsLive Exchange or does this happen with other Exchange accounts too?
- Is there a possibility to set the sync interval for contacts and calendar (somehow, maybe via a config file)?
There seems to be something seriously different if not broken in GB 2.3.3. Apps that work perfectly fine in Froyo are keeping GB 2.3.3 from going to sleep. I've isolated several apps that either keep the screen from shutting off or keep the device constantly awake even when it it's no longer running/cached/screen is off. And, these are programs that work perfectly fine in Froyo and do not cause idle drain. Wonder if this is something 2.3.4 addresses...
Sent from my GT-I9100 using Tapatalk
I have frozen:
social hub, email (i use another one), and few more programs that I dont use but noticed that they stay on without any reason,
if 3G or wifi is ON battery drain is prery bad, I guess this is a bug in 2.3.3 as cmd512 said.
Last night I turned off wifi and 3g and made sure that wifi share + manager are off (they can be turned off easily if u untick "use wifi" in location settings menu)
so with everything off for 7 hours sleep (dont rly need my phone while sleeping) battery was down 2% only :O
the moment I turn on 3G Android OS use jumps to the skies :X
skycamefalling said:
I have found the solution for MY large battery drain:
The problem has been, that my phone used 5% of battery per hour when it’s merely lying around. The battery graph was a straight, quickly decreasing line. So the culprit was not something that happend from time to time but always.
One very disturbing thing: The indicators below the battery graph shows when phone, Wifi and the screen were on. In additions it shows when the phone has been awake.
Even if the screen was off and I did not touch the phone, the „Awake“ indicator constantly showed every minute for a very short time. So the phone never went to sleep, it woke up constantly all the time. Sorry, unfortunately I don’t have a screen capture for this.
Deactivating automatic updates for applications and setting the Emails to sync never didn’t help. I even erased all the Samsung crapware from the system folder, but to no use. The battery died after one day of not doing anything with the phone.
Then I deactivated syncing of the contacts and the calendar for my WindowsLive-Exchange account and the battery drain stopped. I now have less than 1% per hour (see screenshot) when the phone is simply lying around.
So, for me the culprit is the syncing for contacts and calender via Exchange. Unfortunately there is no option to set the sync interval for these.
- Anyone can reproduce this issue?
- Is this just a problem with WindowsLive Exchange or does this happen with other Exchange accounts too?
- Is there a possibility to set the sync interval for contacts and calendar (somehow, maybe via a config file)?
Click to expand...
Click to collapse
Hmmm..it could be. I will try this also. First I just take the contacts out, because that is not so necessary for me. Calendar is pretty necessary for me and emails are a must. If I have to take the calendar out, then so be it. I will manually sync it once a week then.
By the way, I just noticed that with my gmail account the sync icon is constant in the calendar.
Now when I unchecked it and checked back it went away after a while.
I am not sure if it was sycning all the time without luck. Lets see.
I think calendar synch is on of the probleme. With calendar sync my phone drain 5% per hour in idle mode without 1% by one or two hours.
It's quite strange that there's quite a lot of these threads now all saying about how bad the battery is but I'm amazed by how good the battery is. I don't use my phone a huge amount especially at work and when I get home I use it for a quick web browse and the occasional text message and phone call. Most days I will still have 80% or more left by 23:30 having been on since 07:15. Today I checked my phone at 12:30 and the battery had only gone down 1% in just over 5 hours. All I did with it from 07:15 was occasionally take it out of sleep but not unlock it to check for any notifications. Since then I've been using the web (data) for about half hour or so, an hour of music listening and texting and right now I have 77% left after 12.5 hours off charge. Therefore I think my SGSII has the best battery life I could ask for.
AvRS said:
It's quite strange that there's quite a lot of these threads now all saying about how bad the battery is but I'm amazed by how good the battery is. I don't use my phone a huge amount especially at work and when I get home I use it for a quick web browse and the occasional text message and phone call. Most days I will still have 80% or more left by 23:30 having been on since 07:15. Today I checked my phone at 12:30 and the battery had only gone down 1% in just over 5 hours. All I did with it from 07:15 was occasionally take it out of sleep but not unlock it to check for any notifications. Since then I've been using the web (data) for about half hour or so, an hour of music listening and texting and right now I have 77% left after 12.5 hours off charge. Therefore I think my SGSII has the best battery life I could ask for.
Click to expand...
Click to collapse
Really depends on what apps you have running, as you can see from my original thread on this "Awake all the time during idle" issue:
http://forum.xda-developers.com/showthread.php?t=1094666
But in general, agreed. Once I got rid of that bug, the device has been fantastic with battery life. And, for a stock ROM, that's damn impressive!
cmd512 said:
But in general, agreed. Once I got rid of that bug, the device has been fantastic with battery life. And, for a stock ROM, that's damn impressive!
Click to expand...
Click to collapse
I fully agree. Now that I don't have the "wake-up" issue anymore, the battery lifetime is almost as good as the Omnia7 -that's damn impressive for a modern Smartphone with such a hardware!
For me, I turned off my wifi, gps and "my location". And most importantly, my applications are not running when it is on idle. Go to task manager by holding the home folder and click exit all. Or you might try to clear the ram memory.
i have turned off gps, wifi and syncing but still getting battery drains can´t even last for a whole day. But I installed Litening ROM just now and see if this helps . I was on KE2 before flashing custom rom
skycamefalling said:
I have found the solution for MY large battery drain:
The problem has been, that my phone used 5% of battery per hour when it’s merely lying around. The battery graph was a straight, quickly decreasing line. So the culprit was not something that happend from time to time but always.
One very disturbing thing: The indicators below the battery graph shows when phone, Wifi and the screen were on. In additions it shows when the phone has been awake.
Even if the screen was off and I did not touch the phone, the „Awake“ indicator constantly showed every minute for a very short time. So the phone never went to sleep, it woke up constantly all the time. Sorry, unfortunately I don’t have a screen capture for this.
Deactivating automatic updates for applications and setting the Emails to sync never didn’t help. I even erased all the Samsung crapware from the system folder, but to no use. The battery died after one day of not doing anything with the phone.
Then I deactivated syncing of the contacts and the calendar for my WindowsLive-Exchange account and the battery drain stopped. I now have less than 1% per hour (see screenshot) when the phone is simply lying around.
So, for me the culprit is the syncing for contacts and calender via Exchange. Unfortunately there is no option to set the sync interval for these.
- Anyone can reproduce this issue?
- Is this just a problem with WindowsLive Exchange or does this happen with other Exchange accounts too?
- Is there a possibility to set the sync interval for contacts and calendar (somehow, maybe via a config file)?
Click to expand...
Click to collapse
I have noticed the same issue trying to sync to a exchange 2003 account. It seems that my calendar is syncing either every minute or about every 20 minutes. I also noticed the same issue with my gmail calendar. I have tried two different phones and reset each one several times. The same problem keeps occurring. I may have to download touchdown for email, contacts and calendar. It just sucks because then I will have two calendar applications (one for work and one for home). This is very frustrating.
Are you still having issues with echange calendar sync?
After updating to KE7, I have noticed that every time I receive an exchange email the screen wakes up for a second or two and goes to sleep again.
Didn't occur on previous firmware. Anyone else with this issue and a possible fix?
Is social hub the best solution for IM? I would like to have Yahoo and MSN messengers on always, so should I use another less power hungry client? When people mention calendar synch is it google calendar they're talking about? My google calendar is important for me, so how to optimize it?
brademcee said:
Are you still having issues with echange calendar sync?
Click to expand...
Click to collapse
Yes, unfortunately. I am now syncing manually with a switch on the homescreen.
I am now hoping for Android 2.3.4 to fix this issue.
Have a look at comment #290:
http://code.google.com/p/android/issues/detail?id=11126#c290
I have an X10i with Jerpelea's CM7 with custom kernel and that had a very annoying deep sleep issue (the phone never went deep sleeping) which caused the battery to drain very quickly, but Temoi19 found out that by disabling automatic time updates and manually selecting the operator, made the phone to deep sleep. So I took a shoot and tried the same trick on my new Galaxy S II and now when idle my phone barely eats power. After over an hour after unplugging I was still at 100%. I don't know if I am just lucky, but it is worth a try
Sent from my GT-I9100 using XDA Premium App
I also have this issue with my sgs2. I looked into the exchange settings and there is the option to change the syncing. It was set to push, I now i changed it to manual and will report back the results tomorrow. The drain in general only occurs when mobile data is enabled here. Didn't try with wifi yet.
Sent from my GT-P1000 using XDA App
pik1 said:
I also have this issue with my sgs2. I looked into the exchange settings and there is the option to change the syncing. It was set to push, I now i changed it to manual and will report back the results tomorrow. The drain in general only occurs when mobile data is enabled here. Didn't try with wifi yet.
Sent from my GT-P1000 using XDA App
Click to expand...
Click to collapse
You can leave the syncing to push, it's just for the EMails and they're working fine.
I'd propose to disable the calendar and contact sync in Einstellungen -> Konten -> Automatisch synchronisieren
skycamefalling said:
You can leave the syncing to push, it's just for the EMails and they're working fine.
I'd propose to disable the calendar and contact sync in Einstellungen -> Konten -> Automatisch synchronisieren
Click to expand...
Click to collapse
according to the logs if there are no changes in contacts or calendar both will be synced only once per day. so this should not be the issue.